I HAVE SEVERAL 3CPX5000A7'S THAT HAVE COSMETIC ISSUES BUT THEY PAST INITIAL TESTING AND SEEM TO BE GOOD TUBES. TESTING IS VERY LABOR INTENSIVE WITH THE TUBE BOLTED TO THE CHASSIS. I BUILT THIS TEST AMP WITH THE ABILITY TO SCREW THE TUBE DOWN FROM THE TOP, THE CHIMNEY MOUNTS THE SAME WAY. OPERATION IS 14.200. THE CONNECTIONS TO THE TUBE WILL ALL BE FLEXIBLE. I GET A LOT OF MRI PULLS AND THE REAL TEST IS AN EMISSION TEST. I WILL USE MY TEST HV SUPPLY FOR PLATE VOLTAGE.









THIS IS MY 3CX800A7 TEST AMPLIFIER.


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